Salut,
[quote=“alcaline”]je voudrais savoir si il a pas une erreur de ce log sachant que fail2ban jy est pas toucher depuis le mois d’aout
[/quote]
Ma foi les informations que retourne fail2ban.log, sont on ne peut plus que “normal”. 
[root@yunohost] ~ # tail -n 188 /var/log/fail2ban.log
2012-09-27 08:49:07,553 fail2ban.jail : INFO Jail 'ssh' stopped
2012-09-27 08:49:07,555 fail2ban.server : INFO Exiting Fail2ban
2012-09-27 08:49:09,006 fail2ban.server : INFO Changed logging target to /var/log/fail2ban.log for Fail2ban v0.8.6
2012-09-27 08:49:09,008 fail2ban.jail : INFO Creating new jail 'apache-w00tw00t'
2012-09-27 08:49:09,012 fail2ban.jail : INFO Jail 'apache-w00tw00t' uses Gamin
2012-09-27 08:49:09,085 fail2ban.filter : INFO Added logfile = /var/log/apache2/access.log
2012-09-27 08:49:09,087 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:09,100 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,101 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,212 fail2ban.jail : INFO Creating new jail 'xinetd-fail'
2012-09-27 08:49:09,212 fail2ban.jail : INFO Jail 'xinetd-fail' uses Gamin
2012-09-27 08:49:09,215 fail2ban.filter : INFO Added logfile = /var/log/daemon.log
2012-09-27 08:49:09,217 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:09,227 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,229 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,293 fail2ban.jail : INFO Creating new jail 'apache-multiport'
2012-09-27 08:49:09,294 fail2ban.jail : INFO Jail 'apache-multiport' uses Gamin
2012-09-27 08:49:09,299 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:09,303 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:09,321 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,322 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,382 fail2ban.jail : INFO Creating new jail 'apache-anti-scripts'
2012-09-27 08:49:09,382 fail2ban.jail : INFO Jail 'apache-anti-scripts' uses Gamin
2012-09-27 08:49:09,388 fail2ban.filter : INFO Added logfile = /var/log/apache2/access.log
2012-09-27 08:49:09,391 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:09,410 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,414 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,557 fail2ban.jail : INFO Creating new jail 'apache-phpmyadmin'
2012-09-27 08:49:09,557 fail2ban.jail : INFO Jail 'apache-phpmyadmin' uses Gamin
2012-09-27 08:49:09,560 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:09,562 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:09,572 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,574 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,623 fail2ban.jail : INFO Creating new jail 'mysql'
2012-09-27 08:49:09,624 fail2ban.jail : INFO Jail 'mysql' uses Gamin
2012-09-27 08:49:09,627 fail2ban.filter : INFO Added logfile = /var/log/mysql/mysql.log.1.gz
2012-09-27 08:49:09,629 fail2ban.filter : INFO Added logfile = /var/log/mysql/mysql.log
2012-09-27 08:49:09,633 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:09,643 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,644 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,678 fail2ban.jail : INFO Creating new jail 'courierauth'
2012-09-27 08:49:09,679 fail2ban.jail : INFO Jail 'courierauth' uses Gamin
2012-09-27 08:49:09,682 fail2ban.filter : INFO Added logfile = /var/log/mail.log
2012-09-27 08:49:09,684 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:09,694 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,696 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,730 fail2ban.jail : INFO Creating new jail 'apache'
2012-09-27 08:49:09,730 fail2ban.jail : INFO Jail 'apache' uses Gamin
2012-09-27 08:49:09,733 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:09,735 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:09,745 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,747 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,784 fail2ban.jail : INFO Creating new jail 'pam-generic'
2012-09-27 08:49:09,784 fail2ban.jail : INFO Jail 'pam-generic' uses Gamin
2012-09-27 08:49:09,787 fail2ban.filter : INFO Added logfile = /var/log/auth.log
2012-09-27 08:49:09,789 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:09,800 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,802 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,850 fail2ban.jail : INFO Creating new jail 'apache-nodnsuse'
2012-09-27 08:49:09,851 fail2ban.jail : INFO Jail 'apache-nodnsuse' uses Gamin
2012-09-27 08:49:09,854 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:09,856 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:09,867 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,869 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:09,929 fail2ban.jail : INFO Creating new jail 'dropbear'
2012-09-27 08:49:09,930 fail2ban.jail : INFO Jail 'dropbear' uses Gamin
2012-09-27 08:49:09,935 fail2ban.filter : INFO Set maxRetry = 6
2012-09-27 08:49:09,950 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:09,952 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,265 fail2ban.jail : INFO Creating new jail 'couriersmtp'
2012-09-27 08:49:10,266 fail2ban.jail : INFO Jail 'couriersmtp' uses Gamin
2012-09-27 08:49:10,273 fail2ban.filter : INFO Added logfile = /var/log/mail.log
2012-09-27 08:49:10,275 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:10,285 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,287 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,320 fail2ban.jail : INFO Creating new jail 'dovecot'
2012-09-27 08:49:10,321 fail2ban.jail : INFO Jail 'dovecot' uses Gamin
2012-09-27 08:49:10,324 fail2ban.filter : INFO Added logfile = /var/log/mail.log
2012-09-27 08:49:10,325 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:10,336 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,338 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,374 fail2ban.jail : INFO Creating new jail 'proftpd'
2012-09-27 08:49:10,374 fail2ban.jail : INFO Jail 'proftpd' uses Gamin
2012-09-27 08:49:10,377 fail2ban.filter : INFO Added logfile = /var/log/proftpd/proftpd.log
2012-09-27 08:49:10,379 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:10,389 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,391 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,445 fail2ban.jail : INFO Creating new jail 'php-url-fopen'
2012-09-27 08:49:10,446 fail2ban.jail : INFO Jail 'php-url-fopen' uses Gamin
2012-09-27 08:49:10,449 fail2ban.filter : INFO Added logfile = /var/log/apache2/access.log
2012-09-27 08:49:10,451 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:10,462 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,463 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,483 fail2ban.jail : INFO Creating new jail 'http-get-dos'
2012-09-27 08:49:10,483 fail2ban.jail : INFO Jail 'http-get-dos' uses Gamin
2012-09-27 08:49:10,487 fail2ban.filter : INFO Added logfile = /var/log/apache2/access.log
2012-09-27 08:49:10,489 fail2ban.filter : INFO Set maxRetry = 300
2012-09-27 08:49:10,499 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,501 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,535 fail2ban.jail : INFO Creating new jail 'apache-noscript'
2012-09-27 08:49:10,536 fail2ban.jail : INFO Jail 'apache-noscript' uses Gamin
2012-09-27 08:49:10,540 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:10,546 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:10,560 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,562 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,606 fail2ban.jail : INFO Creating new jail 'apache-bloquescan'
2012-09-27 08:49:10,606 fail2ban.jail : INFO Jail 'apache-bloquescan' uses Gamin
2012-09-27 08:49:10,609 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:10,611 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:10,625 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,628 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,672 fail2ban.jail : INFO Creating new jail 'ssh'
2012-09-27 08:49:10,672 fail2ban.jail : INFO Jail 'ssh' uses Gamin
2012-09-27 08:49:10,676 fail2ban.filter : INFO Added logfile = /var/log/auth.log
2012-09-27 08:49:10,677 fail2ban.filter : INFO Set maxRetry = 1
2012-09-27 08:49:10,688 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,690 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,829 fail2ban.jail : INFO Creating new jail 'apache-overflows'
2012-09-27 08:49:10,830 fail2ban.jail : INFO Jail 'apache-overflows' uses Gamin
2012-09-27 08:49:10,833 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:10,835 fail2ban.filter : INFO Set maxRetry = 2
2012-09-27 08:49:10,845 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,847 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,882 fail2ban.jail : INFO Creating new jail 'apache-dosevasive'
2012-09-27 08:49:10,883 fail2ban.jail : INFO Jail 'apache-dosevasive' uses Gamin
2012-09-27 08:49:10,886 fail2ban.filter : INFO Added logfile = /var/log/apache2/error.log
2012-09-27 08:49:10,888 fail2ban.filter : INFO Set maxRetry = 10
2012-09-27 08:49:10,898 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,900 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,918 fail2ban.jail : INFO Creating new jail 'postfix'
2012-09-27 08:49:10,918 fail2ban.jail : INFO Jail 'postfix' uses Gamin
2012-09-27 08:49:10,922 fail2ban.filter : INFO Added logfile = /var/log/mail.log
2012-09-27 08:49:10,924 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:10,934 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:10,936 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:10,970 fail2ban.jail : INFO Creating new jail 'ssh-ddos'
2012-09-27 08:49:10,970 fail2ban.jail : INFO Jail 'ssh-ddos' uses Gamin
2012-09-27 08:49:10,974 fail2ban.filter : INFO Added logfile = /var/log/auth.log
2012-09-27 08:49:10,975 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:10,986 fail2ban.filter : INFO Set findtime = 600
2012-09-27 08:49:10,987 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:11,021 fail2ban.jail : INFO Creating new jail 'apache-404'
2012-09-27 08:49:11,021 fail2ban.jail : INFO Jail 'apache-404' uses Gamin
2012-09-27 08:49:11,024 fail2ban.filter : INFO Added logfile = /var/log/apache2/access.log
2012-09-27 08:49:11,026 fail2ban.filter : INFO Set maxRetry = 12
2012-09-27 08:49:11,036 fail2ban.filter : INFO Set findtime = 31536000
2012-09-27 08:49:11,038 fail2ban.actions: INFO Set banTime = 31536000
2012-09-27 08:49:11,072 fail2ban.jail : INFO Creating new jail 'sasl'
2012-09-27 08:49:11,072 fail2ban.jail : INFO Jail 'sasl' uses Gamin
2012-09-27 08:49:11,076 fail2ban.filter : INFO Added logfile = /var/log/mail.log
2012-09-27 08:49:11,077 fail2ban.filter : INFO Set maxRetry = 3
2012-09-27 08:49:11,088 fail2ban.filter : INFO Set findtime = 600
2012-09-27 08:49:11,089 fail2ban.actions: INFO Set banTime = 600
2012-09-27 08:49:11,127 fail2ban.jail : INFO Jail 'apache-w00tw00t' started
2012-09-27 08:49:11,146 fail2ban.jail : INFO Jail 'xinetd-fail' started
2012-09-27 08:49:11,151 fail2ban.jail : INFO Jail 'apache-multiport' started
2012-09-27 08:49:11,159 fail2ban.jail : INFO Jail 'apache-anti-scripts' started
2012-09-27 08:49:11,174 fail2ban.jail : INFO Jail 'apache-phpmyadmin' started
2012-09-27 08:49:11,201 fail2ban.jail : INFO Jail 'mysql' started
2012-09-27 08:49:11,250 fail2ban.jail : INFO Jail 'courierauth' started
2012-09-27 08:49:11,278 fail2ban.jail : INFO Jail 'apache' started
2012-09-27 08:49:11,328 fail2ban.jail : INFO Jail 'pam-generic' started
2012-09-27 08:49:11,372 fail2ban.jail : INFO Jail 'apache-nodnsuse' started
2012-09-27 08:49:11,399 fail2ban.jail : INFO Jail 'dropbear' started
2012-09-27 08:49:11,448 fail2ban.jail : INFO Jail 'couriersmtp' started
2012-09-27 08:49:11,493 fail2ban.jail : INFO Jail 'dovecot' started
2012-09-27 08:49:11,560 fail2ban.jail : INFO Jail 'proftpd' started
2012-09-27 08:49:11,634 fail2ban.jail : INFO Jail 'php-url-fopen' started
2012-09-27 08:49:11,685 fail2ban.jail : INFO Jail 'http-get-dos' started
2012-09-27 08:49:11,725 fail2ban.jail : INFO Jail 'apache-noscript' started
2012-09-27 08:49:11,786 fail2ban.jail : INFO Jail 'apache-bloquescan' started
2012-09-27 08:49:11,836 fail2ban.jail : INFO Jail 'ssh' started
2012-09-27 08:49:11,883 fail2ban.jail : INFO Jail 'apache-overflows' started
2012-09-27 08:49:11,945 fail2ban.jail : INFO Jail 'apache-dosevasive' started
2012-09-27 08:49:12,019 fail2ban.jail : INFO Jail 'postfix' started
2012-09-27 08:49:12,123 fail2ban.jail : INFO Jail 'ssh-ddos' started
2012-09-27 08:49:12,294 fail2ban.jail : INFO Jail 'apache-404' started
2012-09-27 08:49:12,476 fail2ban.jail : INFO Jail 'sasl' started
2012-09-27 08:49:26,363 fail2ban.actions: WARNING [ssh] Ban 69.238.138.30
2012-09-27 08:49:26,853 fail2ban.actions: WARNING [ssh] Ban 181.68.240.129
2012-09-27 23:12:48,487 fail2ban.actions: WARNING [ssh] Ban 46.105.104.175
2012-09-27 23:55:40,662 fail2ban.actions: WARNING [ssh] Ban 46.105.5.12
2012-09-28 06:25:21,433 fail2ban.filter : INFO Log rotation detected for /var/log/mysql/mysql.log
2012-09-28 06:25:21,436 fail2ban.filter : INFO Log rotation detected for /var/log/mysql/mysql.log.1.gz
2012-09-29 00:20:18,072 fail2ban.actions: WARNING [ssh] Ban 221.204.253.107
2012-09-29 02:30:53,863 fail2ban.actions: WARNING [ssh] Ban 174.142.82.141
2012-09-29 06:29:12,737 fail2ban.filter : INFO Log rotation detected for /var/log/mysql/mysql.log
2012-09-29 06:29:12,740 fail2ban.filter : INFO Log rotation detected for /var/log/mysql/mysql.log.1.gz
[root@yunohost] ~ #
Je ne vois pas trop ce qui t’inquiètes … 